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lm25143 单输出交错操作，输出电压为可调，会进入5V模式，（实际是3.3V,测试FB1脚为0.9V）FB1 下分压电阻我选择1K，把下分压电阻改10K后，目前测试未发现问题，请教下TI工程师FB脚下偏置电阻取值范围。
感谢您对TI产品的关注！
关于你的咨询， lm25143的FB脚下偏置电阻取值范围，一般是10ohm~20ohm之间。
The recommended starting value is between 10 kΩ and 20 kΩ.
